Made from an actual once fired 30-06 cartridge with a real solid copper bullet as the nib.

The .30-06 Springfield rifle cartridge gets its name as the .30
cartridge introduced and standardized by the U.S. military in 1906. The
.30-06 remained the ARMY's primary rifle cartridge for nearly 50 years
until it was replaced 7.62 x 51mm NATO (.308 Winchester) and the 5.56 x
45mm (.223 Remington). It remains a very popular sporting round and is
made by all of the major ammunition manufacturers. All of the cartridges
used to make our pens are once fired rounds.